package demo2;
interface A{
    void A();
} interface B{
    void B();
} interface C{
    void C();
} interface D extends B,C{
    void D();
}

public class Test implements D{

    @Override
    public void B() {

    }

    @Override
    public void C() {

    }

    @Override
    public void D() {

    }
}
